#ifndef __SYS_WAIT_H__
#define __SYS_WAIT_H__

    #include <sys/types.h>

    #define _LOW(v)		( (v) & 0377)
    #define _HIGH(v)	( ((v) >> 8) & 0377)

    /* options for waitpid, WUNTRACED not supported */
    #define WNOHANG		1
    #define WUNTRACED	2

    #define WIFEXITED(s)	(!((s)&0xFF)
    #define WIFSTOPPED(s)	(((s)&0xFF)==0x7F)
    #define WEXITSTATUS(s)	(((s)>>8)&0xFF)
    #define WTERMSIG(s)	((s)&0x7F)
    #define WSTOPSIG(s)	(((s)>>8)&0xFF)
    #define WIFSIGNALED(s)	(((unsigned int)(s)-1 & 0xFFFF) < 0xFF)

    pid_t wait(int *stat_loc);
    pid_t waitpid(pid_t pid, int *stat_loc, int options);

#endif
